Mings



(Nn Model.)

J. R. CUMMINGS.

STEREOTYPE PLATE AND MEANS FOR REGURING IT IN PRINTERS FORMS. No. 325,324. I Patented Sept. 1, 1885.

N. PETERS. PMXo-Lnhognphsr. Washington. D C- UNITED J. RAYMOND CUMMINGS, OF CHICAGO, ILLINOIS, ASSIGNOR OF ONF-THIRD TO JOSEPH P. ELLACOTT, OF SAME PLACE.

STEREOTYPE-PLATE AND MEANS FOR SECURING IT IN PRINTERS FORMS.

SPECIFICATION forming part of Letters Patent No. 32 5,324, dated September 1, 1885.

Application filed March 6, 1584.

T 0 all whom, it may concern:

Be it known that I, J. RAYMOND Curr times, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Stereotype-Plates and Means for Securing them in Printers Forms, of which the following is a specification.

My invention relates to improvements in stereotype-plates and bases, and has for its ob ject to provide improved means whereby the plate is securely clamped down upon and against the base.

The form of the plate and base and the arrangement of the parts are illustrated in the annexed drawings, wherein similar parts are indicated by the sameletter in. all the figures, and wherein Figure 1 is a view of a crosssection of a column of matter with my improved plate and base in position. Fig. 2 is a. view of one side edge of the base, and Fig. 3 is a view of the bottom of the plate.

A is the base, having the ribs 13 B on each side, if desired, or made in the usual manner, and the ribs C I), shaped as shown, at one end. B is the roughened outer surface of the rib D. F is the stereotypeplate having the ribs G G on its lower side, and the flange H at one side edge. K are the colunnrrules.

The form of the ribs C D is such as to make the edge of the base retreating upward from a line near its bottom, thus leaving a short vertical surthce at its lower part. The flange I-I may be inclined at an angle to the plate. so that when in position its lower edge will strike the surface of the base before its upper inner surface touches the upper outcrsurfaoe of the base or rib D. The ribs on the plate and base bear against each other. One side of the plate may have an under bevel. The flange may be of any desired length. The shape and an rangement of the parts are such that when in position the column-rule bears against the base at the lower surface of its edge, and against the upper outer surface of the flange. The width of the flange may be such that the column-rule will bear against-it first in bring- (No model.)

ing the form together; and, indeed, it is not necessary, although preferable, that it should o bear against the base at all.

The use and operation of my improvements are as follows: The form is made up in the usual manner, the plate and base being put in the positions showuin the drawings. hen 5 pressure is applied to lock the form, the column-rule first bears against the upper outer surface of the flange and thereby clamps its inner surface against the roughened surface of the base, at the same time throwing the other 60 edge of the plate down onto the base. Thus, without the aid of special fastening devices, the plate is held at one side and secured in a position parallel wit-h and upon the upper surface of the base. The bevel on the opposite edge of the plate is to keep it from bearing against the colunnrrule, and thus forcing the plate away from the base.

The various features of my invention may be made in the form shown in the drawings; but they may also be greatly varied without departing from the spirit of my invention.

I Claim A l. A stereotype-plate provided with a side flange set so that its outer surface is at a slightly acute angle to the surface of the plate, so that when the form is looked the rule will press against the upper part of the outer sur face of the flange, and thereby press the other edge of the plate down upon the base.

2. The combination of a stereotype-plate having at one side edge a fastening-flange, a base retreating at the upper part of one edge, the retreating surface being roughened, and column-rules which when the form is locked bear against the flange and force its innersurface against the roughened surface of the base.

In witness whereof I have hereunto set my hand, in the presence of two witnesses, at Chicago, Illinois, this 29th day of February, A. D. 1884.

J. RAYMOND CUMMINGS. 

